Now vanilla (or with Fabric loader) profile creation is implemented.

README.md

@@ -1 +1,3 @@
 # TestLauncher
+
+# There's no stable branch because this project is still under development.

core_lib/game/mod/fabric.py

@@ -13,6 +13,9 @@ FABRIC_META_LOADER_VERSION_ENDPOINT_V2 = "https://meta.fabricmc.net/v2/versions/
 FABRIC_META_LOADER_MANIFEST_ENDPOINT_V2 = "https://meta.fabricmc.net/v2/versions/loader/{}/{}/profile/json"
 FABRIC_MAVEN_URL = "https://maven.fabricmc.net/"
 
+def get_full_version_string(version: str, loader_version: str) -> str:
+    return f"fabric-loader-{loader_version}-{version}"
+
 def fetch_fabric_version_list(version_manifest_url: str=FABRIC_META_VERSION_ENDPOINT_V2, timeout: int=5) -> list[dict]:
     try:
         r = requests.get(version_manifest_url, timeout=timeout)
@@ -66,6 +69,7 @@ def get_version_support_loader_list(target_version: str, loader_version_url: str
         -> list[dict]:
     try:
         r = requests.get(loader_version_url.format(target_version), timeout=timeout)
+        r.raise_for_status()
     except requests.exceptions.Timeout:
         raise VersionManifestFetchException(
             "Timeout while fetch from {}".format(loader_version_url)
@@ -75,6 +79,12 @@ def get_version_support_loader_list(target_version: str, loader_version_url: str
             "Connection error while fetch from {}: {}".format(loader_version_url, e)
         )
     except requests.exceptions.HTTPError as e:
+        if e.response.status_code == 404 or e.response.status_code == 400:
+            raise VersionManifestFetchException(
+                "HTTP error while fetch from {}: {}".format(loader_version_url, e),
+                user_message="Target version {} no fabric version found".format(target_version)
+            )
+        else:
             raise VersionManifestFetchException(
                 "HTTP error while fetch from {}: HTTP Status: {}".format(loader_version_url, e.response.status_code)
             )
@@ -102,7 +112,8 @@ def get_version_support_loader_list(target_version: str, loader_version_url: str
 
     if not loaders:
         raise VersionManifestException(
-            "No available loader found in {}".format(loader_version_url)
+            "No available loader found in {}".format(loader_version_url),
+            user_message="Target version {} no fabric version found".format(target_version)
         )
 
     return loaders
@@ -121,6 +132,7 @@ def get_loader_manifest_from_loader_data(target_version: str, loader_data: dict,
 
     try:
         r = requests.get(url, timeout=5)
+        r.raise_for_status()
     except requests.exceptions.Timeout:
         raise VersionManifestFetchException(
             "Timeout while fetch from {}".format(url)
@@ -150,6 +162,3 @@ def get_loader_manifest_from_loader_data(target_version: str, loader_data: dict,
             "Unknown error while fetch from {}: {}".format(url, e)
         )
 
-
-
-

core_lib/game/version_info.py

@@ -400,6 +400,48 @@ def get_core_file_download_url_and_hash(version_manifest: dict, is_server: bool=
 
     return download_url, sha1
 
+def save_version_manifest(manifest: dict, dest: Path, sha1: str | None=None) -> dict:
+    """
+    Save version manifest with hash verify
+    :param manifest:
+    :param dest:
+    :param sha1:
+    :return:
+        data: dict
+    """
+    file = FileObject(
+        path=dest,
+        sha1=sha1,
+    )
+
+    dest.parent.mkdir(parents=True, exist_ok=True)
+
+    try:
+        method = "wb" if isinstance(manifest, bytes) else "w"
+        with dest.open(method) as f:
+            if isinstance(manifest, bytes):
+                f.write(manifest)
+            elif isinstance(manifest, dict):
+                json.dump(manifest, f)
+
+        if sha1 is not None and not file.verify_sha1(sha1):
+            raise HashMismatchException(
+                "sha1",
+                file.sha1,
+                sha1,
+                file.posix_path
+            )
+
+        if isinstance(manifest, bytes):
+            # Convert the data back to dict
+            return json.loads(manifest.decode("utf-8"))
+        else:
+            return manifest
+    except Exception as e:
+        logger.exception(e)
+        raise VersionManifestSaveException(
+            "Error saving version manifest:\n{}".format(e)
+        )
 
 def fetch_and_save_version_manifest(dest: Path, target_version: str=None, root_manifest=None) -> dict | None:
     """
@@ -423,39 +465,7 @@ def fetch_and_save_version_manifest(dest: Path, target_version: str=None, root_m
         data = root_manifest
         sha1 = None
 
-    file = FileObject(
-        path=dest,
-        sha1=sha1,
-    )
-
-    dest.parent.mkdir(parents=True, exist_ok=True)
-
-    try:
-        method = "wb" if isinstance(data, bytes) else "w"
-        with dest.open(method) as f:
-            if isinstance(data, bytes):
-                f.write(data)
-            elif isinstance(data, dict):
-                json.dump(data, f)
-
-        if sha1 is not None and not file.verify_sha1(sha1):
-            raise HashMismatchException(
-                "sha1",
-                file.sha1,
-                sha1,
-                file.posix_path
-            )
-
-        if isinstance(data, bytes):
-            # Convert the data back to dict
-            return json.loads(data.decode("utf-8"))
-        else:
-            return data
-    except Exception as e:
-        logger.exception(e)
-        raise VersionManifestSaveException(
-            "Error saving version manifest:\n{}".format(e)
-        )
+    return save_version_manifest(data, dest, sha1)
 
 def download_core_file(manifest: dict, destination: Path, is_server=False, raise_for_null_hash=False,
                        progress_callback: Callable[[str, float], None]=None) -> FileObject:

core_lib/runtime/java.py

@@ -136,13 +136,12 @@ def find_java_installations(extra_install_patterns: list | None=None) -> tuple[l
         try:
             ver, raw = get_java_version(converted_path)
         except JavaRuntimeParseException:
-
             logger.debug(f"Unable to parse java version: {converted_path}")
         except JavaRuntimeException:
             logger.debug(f"Unable to run java executable: {converted_path}")
         except Exception as e:
             logger.exception(f"Unhandled exception: {e} (For path: {converted_path})")
-        finally:
+
         if not ver:
             errors.append(converted_path)
             continue

manager/game.py

@@ -1,6 +1,7 @@
 import json
 import time
 import traceback
+from collections.abc import Callable
 from pathlib import Path
 from uuid import uuid4
 from PySide6.QtCore import QObject
@@ -8,7 +9,8 @@ from PySide6.QtCore import QObject
 from core_lib.common.common import FileObject
 from core_lib.common.exception import VersionManifestFetchException, VersionManifestSaveException, \
     NoSpecifiedVersionKeyException
-from core_lib.game.version_info import fetch_and_save_version_manifest, get_specific_version_manifest_url_and_hash
+from core_lib.game.version_info import fetch_and_save_version_manifest, get_specific_version_manifest_url_and_hash, \
+    save_version_manifest
 
 
 class ManifestManager:
@@ -59,6 +61,52 @@ class ManifestManager:
 
         return True if data else False, data
 
+    def _cache_custom_version_manifest(self, version_id: str, fetch_manifest_handler: Callable[[str], tuple[dict, str | None]]):
+        data = None
+        manifest_sha1 = None
+        path = self.get_specific_version_manifest_path(version_id)
+
+        # Fetch data
+        try:
+            data, manifest_sha1 = fetch_manifest_handler(version_id)
+        except VersionManifestFetchException as e:
+            self.widget_mgr.signal.show_error_message.emit(
+                e.user_message,
+            )
+        except VersionManifestSaveException as e:
+            self.widget_mgr.signal.show_error_message.emit(
+                e.user_message,
+            )
+        except Exception as e:
+            self.widget_mgr.signal.show_and_print_error_message.emit(
+                {
+                    "error": traceback.format_exception(e),
+                    "title": "Cache Error",
+                    "message": "An unexpected error occurred while caching version manifest."
+                }
+            )
+
+        # Save data
+        if data:
+            try:
+                save_version_manifest(data, path, sha1=manifest_sha1)
+            except VersionManifestSaveException as e:
+                self.widget_mgr.signal.show_error_message.emit(
+                    e.user_message,
+                )
+                return False, None
+            except Exception as e:
+                self.widget_mgr.signal.show_and_print_error_message.emit(
+                    {
+                        "error": traceback.format_exception(e),
+                        "title": "Cache Error",
+                        "message": "An unexpected error occurred while caching version manifest."
+                    }
+                )
+                return False, None
+
+        return True if data else False, data
+
     def _read_cached_version_manifest(self, specified_ver: str = None) -> dict | None:
         path = self.switch_between_specific_path(specified_ver)
         if not path.exists():
@@ -80,7 +128,8 @@ class ManifestManager:
             )
             return None
 
-    def get_cached_version_manifest(self, specified_ver: str = None, max_age: int = 3600) -> dict | None:
+    def get_cached_version_manifest(self, specified_ver: str = None,
+                                    max_age: int = 3600) -> dict | None:
         path = self.switch_between_specific_path(specified_ver)
         file = FileObject(path)
         sha1 = None
@@ -122,6 +171,26 @@ class ManifestManager:
 
         return data
 
+    def get_cached_custom_version_manifest(self, specified_ver: str,
+                                           fetch_manifest_handler: Callable[[str], tuple[dict, str | None]],
+                                           max_age=1260000) -> dict | None:
+        path = self.get_specific_version_manifest_path(specified_ver)
+        file = FileObject(path)
+
+        if file.exists:
+            age = time.time() - path.stat().st_mtime
+
+            # Check file stat
+            if age < max_age:
+                return self._read_cached_version_manifest(specified_ver)
+
+        result, data = self._cache_custom_version_manifest(specified_ver, fetch_manifest_handler=fetch_manifest_handler)
+
+        if not result:
+            return None
+
+        return data
+
     def create_download_progress_callback(self, progress_title: str):
         task_id = uuid4().hex
         signals = self.widget_mgr.download_signal

pages/create_profile.py

@@ -4,23 +4,16 @@ from pathlib import Path
 
 from PySide6.QtCore import QSize, Qt, QObject, Signal, Slot
 from PySide6.QtWidgets import QWidget, QVBoxLayout, QComboBox, QListWidget, QPushButton, QLabel, QHBoxLayout, \
-    QSizePolicy
+    QSizePolicy, QListWidgetItem, QInputDialog
 
+from core_lib.common.exception import VersionManifestFetchException, VersionManifestException
+from core_lib.game.mod import fabric
+from core_lib.game.mod.mod_core import find_useful_part_in_mod_version_manifest
 from core_lib.game.version_info import get_all_versions, get_available_version_types
 from manager.game import ManifestManager, GameManager
+from manager.profile import CreateProfileRequest
 from manager.widgets import SignalTransferItem, WidgetManager
 
-LOADER_LIST = {
-    "fabric": {
-        "type": "modded",
-        "loadVersionMethod": None,
-    },
-    "Don't Install": {
-        "type": "vanilla",
-        "loadVersionMethod": "official",
-    }
-}
-
 class CreateProfilePage(QWidget):
     def __init__(self, app, parent=None):
         super(CreateProfilePage, self).__init__(parent)
@@ -73,8 +66,8 @@ class CreateProfilePage(QWidget):
         self.version_list.setObjectName("ListWidget")
 
         # Button
-        self.create_profile = QPushButton("Create Profile")
-        self.create_profile.setObjectName("Button")
+        self.create_profile_button = QPushButton("Create Profile")
+        self.create_profile_button.setObjectName("Button")
 
         self.refresh_button = QPushButton("Refresh")
         self.refresh_button.setObjectName("Button")
@@ -85,7 +78,7 @@ class CreateProfilePage(QWidget):
         self.operate_layout.addWidget(self.version_list_type_label)
         self.operate_layout.addStretch()
         self.operate_layout.addWidget(self.refresh_button)
-        self.operate_layout.addWidget(self.create_profile)
+        self.operate_layout.addWidget(self.create_profile_button)
 
         self.mod_config_fields_layout.addWidget(
             self.mod_loader_label
@@ -143,15 +136,38 @@ class CreateProfilePage(QWidget):
         # Signals
         self.signals = self.PageSignal()
 
-        self.signals.get_selected_type.connect(self.get_selected_type)
-        self.signals.get_selected_version.connect(self.get_selected_version)
-        self.signals.update_type_dropdown.connect(self.update_type_dropdown)
-        self.signals.update_version_dropdown.connect(self.update_version_dropdown)
+        self.signals.get_selected_item.connect(self.get_selected_item)
+        self.signals.update_list.connect(self.update_list)
+        self.signals.clean_list.connect(self.clean_list)
 
-        # events
-        self.type_list_loading = threading.Event()
-        self.version_list_loading = threading.Event()
+        # Button event
+        self.create_profile_button.clicked.connect(self.create_profile)
 
+        # Update version list while current type is changed
+        self.version_type_dropdown.currentTextChanged.connect(
+            self.start_load_version_list
+        )
+
+        self.version_list.currentTextChanged.connect(
+            self.start_load_mod_loader_version
+        )
+
+        self.mod_loader_dropdown.currentTextChanged.connect(
+            self.start_load_mod_loader_version
+        )
+
+        self.loader_list = {
+            "Don't Install": {
+                "type": "vanilla",
+                "loadVersionMethod": self.load_vanilla_version_list,
+                "profileCreateHandler": self.handle_vanilla_profile_create,
+            },
+            "Fabric": {
+                "type": "modded",
+                "loadVersionMethod": getattr(self, "load_fabric_version_list", None),
+                "profileCreateHandler": self.handle_fabric_profile_create,
+            }
+        }
         self.init_all()
 
     class PageSignal(QObject):
@@ -159,19 +175,75 @@ class CreateProfilePage(QWidget):
         load_version_list = Signal()
 
         # widget
+        update_list = Signal(object)
         clean_list = Signal(object)
-        update_version_dropdown = Signal(list)
-        update_type_dropdown = Signal(list)
         update_mod_loader_icon_label = Signal(object)
-        update_mod_loader_dropdown = Signal(list)
-        update_mod_loader_version_list = Signal(list)
 
-        get_selected_version = Signal(object)
-        get_selected_type = Signal(object)
+        get_selected_item = Signal(object)
 
     #
     # Signal Handler
     #
+    class UpdateListRequest(object):
+        def __init__(self, target_list: QListWidget | QComboBox, items: list[str], clean: bool=True,
+                     current_index: int | None = None, custom_handler: Callable = None,
+                     block_signals: bool = False, complete_callback: Callable = None):
+            self.target_list = target_list
+            self.items: list[str | dict] = items
+            self.clean = clean
+            self.current_index = current_index
+            self.custom_handler = custom_handler
+            self.block_signals = block_signals
+            self.complete_callback = complete_callback
+
+    @Slot(object)
+    def update_list(self, request: UpdateListRequest):
+        target_list = request.target_list
+        items = request.items
+
+        if not isinstance(target_list, QListWidget | QComboBox):
+            raise TypeError(
+                "Target list must be a QListWidget or QComboBox."
+            )
+
+        if request.block_signals:
+            target_list.blockSignals(True)
+
+        # Handle update
+        try:
+            if request.clean:
+                target_list.clear()
+
+            if callable(request.custom_handler):
+                handler = request.custom_handler
+                handler(request)
+            else:
+                target_list.addItems(items)
+
+            index = request.current_index
+            if index is None:
+                return
+
+            # Check and set current index
+            if 0 <= request.current_index < target_list.count():
+                if isinstance(target_list, QComboBox):
+                    target_list.setCurrentIndex(index)
+                elif isinstance(target_list, QListWidget):
+                    target_list.setCurrentRow(index)
+            else:
+                self.app.logger.warning(
+                    "Target list index out of range. Current index is {}.".format(
+                        request.current_index
+                    )
+                )
+        finally:
+            if request.block_signals:
+                target_list.blockSignals(False)
+
+        if callable(request.complete_callback):
+            request.complete_callback()
+
+
     @staticmethod
     def clean_list(target_list: QListWidget | QComboBox):
         if not isinstance(target_list, QListWidget | QComboBox):
@@ -179,33 +251,44 @@ class CreateProfilePage(QWidget):
 
         target_list.clear()
 
-    @Slot(dict)
-    def get_selected_type(self, item: SignalTransferItem):
-        if not isinstance(item, SignalTransferItem):
-            raise TypeError("Item is not a SignalTransferItem")
+    class GetSelectedItem(SignalTransferItem):
+        def __init__(self, target_list: QListWidget | QComboBox):
+            SignalTransferItem.__init__(self)
+            self.target_list = target_list
 
-        selected_type = self.version_type_dropdown.currentText()
+    class DisplayListItem(QListWidgetItem):
+        def __init__(self, parent: QListWidget=None, display_text: str=None, raw_value: str=None):
+            QListWidgetItem.__init__(self, parent)
 
-        if not selected_type:
-            item.result_queue.put(None)
-        else:
-            item.result_queue.put(selected_type)
+            self.display_text = display_text
+            self.raw_value = raw_value
 
-        item.wait_event.set()
+            self.setText(self.display_text)
 
     @Slot(object)
-    def get_selected_version(self, item: SignalTransferItem):
-        if not isinstance(item, SignalTransferItem):
-            raise TypeError("Item is not a SignalTransferItem")
+    def get_selected_item(self, request: GetSelectedItem):
+        if not isinstance(request, self.GetSelectedItem):
+            raise TypeError("Item is not a GetSelectedItem")
 
-        selected_item = self.version_list.currentItem()
+        target = request.target_list
 
-        if selected_item is None:
-            item.result_queue.put(None)
+        if isinstance(target, QComboBox):
+            selected_text = target.currentText()
+        elif isinstance(target, QListWidget):
+            item = target.currentItem()
+            if isinstance(item, self.DisplayListItem):
+                selected_text = item.raw_value
             else:
-            item.result_queue.put(selected_item.text())
+                selected_text = None
+        else:
+            raise TypeError("Target list is not a QListWidget or QComboBox")
 
-        item.wait_event.set()
+        if not selected_text:
+            request.result_queue.put(None)
+        else:
+            request.result_queue.put(selected_text)
+
+        request.wait_event.set()
 
     def update_type_dropdown(self, types: list):
         # Move release to top
@@ -218,63 +301,328 @@ class CreateProfilePage(QWidget):
         if len(self.version_type_dropdown.currentText()) == 0:
             self.version_type_dropdown.setCurrentIndex(0)
 
-    def update_version_dropdown(self, versions: list):
-        ids = []
 
-        for version in versions:
-            ver_id = version.get("id", None)
-            if ver_id is not None:
-                ids.append(ver_id)
+    def update_version_list(self, request: UpdateListRequest):
+        version_list = request.target_list
 
-        self.version_list.addItems(ids)
+        if not isinstance(version_list, QListWidget | QComboBox):
+            raise TypeError("Target list is not a QListWidget or QComboBox")
 
-        selected_item = self.version_list.currentItem()
+        for version in request.items:
+            ver_id = version.get("id", None) or version.get("version", None)
+            stable = version.get("stable", None)
 
-        if selected_item is None and len(ids) > 0:
-            self.version_list.setCurrentRow(0)
+            if not ver_id:
+                self.app.logger.warning("Provided version {} missing ID.".format(version))
+
+            display_text = ver_id
+
+            if stable is not None and isinstance(stable, bool):
+                display_text = f"{ver_id}"+(" (stable)" if stable else "")
+
+            item = self.DisplayListItem(
+                parent=request.target_list,
+                display_text=display_text,
+                raw_value=ver_id,
+            )
+
+            version_list.addItem(item)
+
+    def update_mod_loader_list(self, loaders: dict):
+        for loader_name, value in loaders.items():
+            self.mod_loader_version_list.addItem(loader_name)
 
     #
     # Thread Starter
     #
     def init_all(self):
-        self.start_load_type_list(callback=self.start_load_version_list)
+        self.start_load_type_list()
+        self.start_load_mod_loader_list()
 
-    def start_load_type_list(self, callback=None):
-        thread = threading.Thread(target=self.load_type_list, args=(callback,))
+    def start_load_type_list(self):
+        thread = threading.Thread(target=self.load_type_list)
         thread.start()
 
     def start_load_version_list(self):
         thread = threading.Thread(target=self.load_version_list)
         thread.start()
 
-    def start_load_mod_loader_list_and_version(self):
-        pass
+    def start_load_mod_loader_list(self):
+        thread = threading.Thread(target=self.load_mod_loader_list)
+        thread.start()
+
+    def start_load_mod_loader_version(self):
+        thread = threading.Thread(target=self.load_mod_loader_version)
+        thread.start()
+
+    #
+    # Processor
+    #
+    def create_profile(self):
+        request = self.GetSelectedItem(
+            target_list=self.version_list,
+        )
+        self.signals.get_selected_item.emit(request)
+
+        if not request.wait(10):
+            self.widget_mgr.signal.show_error_message.emit(
+                "Timeout while waiting for selected version.",
+            )
+            return
+
+        minecraft_version = request.result()
+
+        if not minecraft_version:
+            self.widget_mgr.signal.show_warning_message.emit(
+                "Selected a version before creating profile.",
+            )
+            return
+
+        loader_request = self.GetSelectedItem(
+            target_list=self.mod_loader_dropdown,
+        )
+        self.signals.get_selected_item.emit(loader_request)
+
+        if not loader_request.wait(10):
+            self.widget_mgr.signal.show_error_message.emit(
+                "Timeout while waiting for selected mod loader.",
+            )
+            return
+
+        loader_name = loader_request.result()
+
+        if loader_name not in self.loader_list:
+            self.widget_mgr.signal.show_error_message.emit(
+                "Loader {} not found.".format(loader_name),
+            )
+            return
+
+        loader = self.loader_list[loader_name]
+        profile_create_handler: Callable[[str, str, str | None], None] = loader.get("profileCreateHandler", None)
+
+        if profile_create_handler is None:
+            self.widget_mgr.signal.show_warning_message.emit(
+                "Profile creation for loader {} is not implemented.".format(loader_name),
+            )
+            return
+
+        loader_version_request = self.GetSelectedItem(
+            target_list=self.mod_loader_version_list,
+        )
+        self.signals.get_selected_item.emit(loader_version_request)
+
+        if not loader_version_request.wait(10):
+            self.widget_mgr.signal.show_error_message.emit(
+                "Timeout while waiting for selected mod loader version.",
+            )
+            return
+
+        loader_version = loader_version_request.result()
+
+        if not loader_version and loader_version is not None:
+            loader_version = None
+
+        profile_name, accepted = QInputDialog.getText(
+            self,
+            "Create Profile",
+            "Profile name:",
+            text=f"Minecraft {minecraft_version}",
+        )
+
+        if not accepted:
+            return
+
+        profile_name = profile_name.strip()
+        if not profile_name:
+            self.widget_mgr.signal.show_warning_message.emit(
+                "Profile name cannot be empty.",
+            )
+            return
+
+        # Call handler
+        if callable(profile_create_handler):
+            profile_create_handler(profile_name, minecraft_version, loader_version)
+
+    def handle_vanilla_profile_create(self, profile_name: str, version: str, loader_version: None=None, switch_to_current=False):
+        """
+        Handle vanilla profile creation.
+        :param profile_name:
+        :param version:
+        :param loader_version:
+        :param switch_to_current: Switch new profile to current profile.
+        :return:
+        """
+        manifest = self.manifest_mgr.get_cached_version_manifest(version)
+
+        if not manifest:
+            self.widget_mgr.signal.show_warning_message.emit(
+                "Unable to create profile due to manifest fetch failure.",
+            )
+            return
+
+        version_id: str = manifest.get("id")
+        version_type = manifest.get(
+            "type",
+            self.version_type_dropdown.currentText() or "custom",
+        )
+
+        if version_id is None:
+            self.widget_mgr.signal.show_error_message.emit(
+                "Unable to create profile due to version ID is missing in manifest.",
+            )
+            return
+
+        request = CreateProfileRequest(
+            name=profile_name,
+            version_id=version_id,
+            version_type=version_type,
+        )
+
+        # Switch to current profile and save
+        profile_id = self.app.profile_manager.create_profile(request)
+        if profile_id is None:
+            return
+
+        if switch_to_current:
+            if not self.app.profile_manager.set_current_profile(profile_id):
+                return
+
+        if not self.app.profile_manager.save():
+            return
+
+        self.widget_mgr.signal.show_info_message.emit(
+            f"Profile {profile_id} successfully created.",
+        )
+
+    def handle_fabric_profile_create(self, profile_name: str, minecraft_version: str, loader_version: str | None, switch_to_current=False):
+        """
+        Handle fabric profile creation.
+        :param profile_name:
+        :param minecraft_version:
+        :param loader_version:
+        :param switch_to_current:
+        :return:
+        """
+        if not loader_version:
+            self.widget_mgr.signal.show_warning_message.emit(
+                "Selected a fabric loader version before creating profile.",
+            )
+            return
+
+        # Create vanilla manifest
+        vanilla_manifest = self.manifest_mgr.get_cached_version_manifest(
+            minecraft_version
+        )
+        if not vanilla_manifest:
+            self.widget_mgr.signal.show_error_message.emit(
+                "Unable to create profile due to vanilla manifest fetch failure.",
+            )
+            return
+
+        version_id = fabric.get_full_version_string(version=minecraft_version, loader_version=loader_version)
+
+        def fetch_loader_manifest(_version_id: str, ) -> tuple[dict, None]:
+            manifest = fabric.get_loader_manifest_from_loader_data(
+                minecraft_version,
+                {"version": loader_version},
+            )
+            return manifest, None
+
+        loader_manifest = self.manifest_mgr.get_cached_custom_version_manifest(
+            version_id, fetch_manifest_handler=fetch_loader_manifest,)
+
+        if not loader_manifest:
+            self.widget_mgr.signal.show_error_message.emit(
+                "Unable to create profile due to mod loader manifest fetch failure.",
+            )
+            return
+
+        loader_info = find_useful_part_in_mod_version_manifest(
+            loader_manifest
+        )
+
+        # Check mod info
+        if loader_info["id"] != version_id:
+            self.app.logger.error(f"Fabric manifest ID mismatch: expected {version_id}, got {loader_info["id"]}.")
+            self.widget_mgr.signal.show_error_message.emit(
+                "Unable to create profile. Exising loader version ID mismatch.",
+            )
+            return
+
+        if loader_info["inheritsFrom"] != minecraft_version:
+            self.app.logger.error(
+                f"Fabric manifest inherits from "
+                f'{loader_info["inheritsFrom"]}, not {minecraft_version}.'
+            )
+            self.widget_mgr.signal.show_error_message.emit(
+                "Unable to create profile. Inherits version is mismatched as expected.",
+            )
+            return
+
+        request = CreateProfileRequest(
+            name=profile_name,
+            version_id=version_id,
+            version_type=loader_info["type"] or vanilla_manifest["type"] or "custom",
+        )
+
+        profile_id = self.app.profile_manager.create_profile(
+            request
+        )
+
+        if profile_id is None:
+            return
+
+        if switch_to_current:
+            if not self.app.profile_manager.set_current_profile(profile_id):
+                return
+
+        if not self.app.profile_manager.save():
+            return
+
+        self.widget_mgr.signal.show_info_message.emit(
+            f"Profile {profile_id} with fabric loader successfully created.",
+        )
+
+
+    def handle_forge_profile_create(self, profile_name: str, minecraft_version: str, loader_version: str | None):
+        if not loader_version:
+            self.widget_mgr.signal.show_warning_message.emit(
+                "Selected a forge loader version before creating profile.",
+            )
+
+    def handle_neoforge_profile_create(self, profile_name: str, minecraft_version: str, loader_version: str | None):
+        if not loader_version:
+            self.widget_mgr.signal.show_warning_message.emit(
+                "Selected a neoforge loader version before creating profile.",
+            )
 
     #
     # Background Thread
     #
-    def load_type_list(self, callback: Callable[None]=None):
-        # Cleanup
-        self.signals.clean_list.emit(self.version_type_dropdown)
-
+    def load_type_list(self):
         manifest = self.manifest_mgr.get_cached_version_manifest()
         if not manifest:
             return
 
         ver_types = get_available_version_types(manifest)
+        release_index = ver_types.index("release") if "release" in ver_types else None
 
-        self.signals.update_type_dropdown.emit(ver_types)
-
-        if callable(callback):
-            callback()
-
-    def load_version_list(self, callback: Callable[Callable[None] | None]=None):
-        # Cleanup
-        self.version_list.clear()
+        request = self.UpdateListRequest(
+            target_list=self.version_type_dropdown,
+            items=ver_types,
+            current_index=release_index,
+            clean=True,
+            block_signals=True,
+            complete_callback=self.start_load_version_list,
+        )
+        self.signals.update_list.emit(request)
 
+    def load_version_list(self):
         # Get selected version type
-        request = SignalTransferItem()
-        self.signals.get_selected_type.emit(request)
+        request = self.GetSelectedItem(
+            target_list=self.version_type_dropdown
+        )
+        self.signals.get_selected_item.emit(request)
 
         if not request.wait(10):
             self.widget_mgr.signal.show_error_message.emit(
@@ -292,13 +640,115 @@ class CreateProfilePage(QWidget):
 
         # Fetch (or read) manifest
         manifest = self.manifest_mgr.get_cached_version_manifest()
+
+        if not manifest:
+            return
+
         versions = get_all_versions(
             manifest,
             specified_type=selected_type
         )
 
         # Update list
-        self.update_version_dropdown(versions)
+        request = self.UpdateListRequest(
+            target_list=self.version_list,
+            items=versions,
+            clean=True,
+            current_index=0,
+            custom_handler=self.update_version_list
+        )
+        self.signals.update_list.emit(request)
 
-        if callable(callback):
-            callback(None)
+    def load_vanilla_version_list(self):
+        """
+        A dummy port for load_mod_loader_version
+        :return:
+        """
+        self.clean_list(self.mod_loader_version_list)
+
+    def load_fabric_version_list(self):
+        self.signals.clean_list.emit(self.mod_loader_version_list)
+        request = self.GetSelectedItem(
+            target_list=self.version_list
+        )
+        self.signals.get_selected_item.emit(request)
+
+        if not request.wait(10):
+            self.widget_mgr.signal.show_error_message.emit(
+                "Timeout while waiting for selected version.",
+            )
+
+        selected_version = request.result()
+
+        if not selected_version:
+            self.widget_mgr.signal.show_warning_message.emit(
+                "No version selected.",
+            )
+
+        try:
+            loaders = fabric.get_version_support_loader_list(
+                selected_version
+            )
+        except (VersionManifestFetchException, VersionManifestException) as e:
+            self.widget_mgr.signal.show_error_message.emit(
+                "Failed to fetch version manifest: {}".format(e.user_message),
+            )
+            return
+        except Exception as e:
+            self.widget_mgr.signal.show_error_message.emit(
+                "An unexpected error occurred while fetching version manifest: {}".format(e),
+            )
+            return
+
+        request = self.UpdateListRequest(
+            target_list=self.mod_loader_version_list,
+            items=loaders,
+            current_index=0,
+            custom_handler=self.update_version_list,
+            block_signals=True,
+        )
+        self.signals.update_list.emit(request)
+
+    def load_mod_loader_list(self):
+        loaders = [loader for loader in self.loader_list.keys()]
+
+        request = self.UpdateListRequest(
+            target_list=self.mod_loader_dropdown,
+            items=loaders,
+            current_index=0,
+            clean=True
+        )
+        self.signals.update_list.emit(request)
+
+    def load_mod_loader_version(self):
+        request = self.GetSelectedItem(
+            target_list=self.mod_loader_dropdown
+        )
+        self.signals.get_selected_item.emit(request)
+
+        if not request.wait(10):
+            self.widget_mgr.signal.show_error_message.emit(
+                "Timeout while waiting for selected loader.",
+            )
+            return
+
+        loader_name = request.result()
+
+        if loader_name not in self.loader_list:
+            raise KeyError("Target loader {} not found".format(loader_name))
+
+        loader = self.loader_list[loader_name]
+        version_handler = loader.get("loadVersionMethod", None)
+
+        if not version_handler:
+            self.widget_mgr.signal.show_warning_message.emit(
+                "Selected loader \"{}\" is not implemented".format(loader_name),
+            )
+            return
+
+        if callable(version_handler):
+            version_handler()
+        else:
+            self.app.logger.warning(
+                "Select mod loader \"loadVersionMethod\" is not callable."
+            )

resources/icons/COPYRIGHT.md

@@ -1,8 +1,10 @@
 # Copyright announce for *Launcher* icon resources
 
-## 1. You can do anything you want to these icons. (Except some icons that said maybe have other peoples copyright announce)
+## 1. You can do anything you want to these icons. (However, you may need other people's accept to use below that maybe have other peoples copyright announce)
 
 ## 2. Below icons are from other source that may contain copyright:
 - profile_default.png : [Source](https://www.pixilart.com/art/minecraft-crafting-table-8aa9e1b9aee1a62)
+- modLoader/fabric.png : [Source](https://fabricmc.net/assets/logo.png)
+- modLoader/neoforged.png : [Source](https://raw.githubusercontent.com/neoforged/.github/refs/heads/main/art/neoforged.ico)
 
 ## For the icon owner: If you want to take down icon that infringing upon your copyright. Contact us with this [link](https://repo.weispace.net/wei/Launcher)